How is your cart set up? Do your each of your control point enitites have a unique index? Is the assosiated control point (in the capture area entity) set to be your first control point? When you start, do you see the payload HUD? Is the cart at the start of the track (in the HUD) or at the end? Have you added the ABS's filter entities?

when i start the game, i do not have the payload hud, even though i checked "payload hud" in the "hud type" dialog. i copied and pasted everything from ABS' resource pack to the map, but i may have deleted a control point, so that's what may be doing it, i'm going to remove all control points and then insert the new ones.
#EDIT# #about 5 minutes#
I removed all the points and replaced them with fresh ones, and it worked! but the hud still does not show up. thanks for the help!
#another edit# #around 9:00-ish#
the HUD is showing up now, it's all working fine!

when i start the game, i do not have the payload hud, even though i checked "payload hud" in the "hud type" dialog.

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The payload HUD is also formatted by the team_train_watcher entity. Check that you have one of those (ABS' prefab has one to begin with), and that the names of the team_control_points and path_tracks listed in it are correct.